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Science > Chapter 6 Vocabulary > Flashcards

Chapter 6 Vocabulary Flashcards

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Biology 101 flashcards
1
Q

What is the rate at which work is done?

A

Power

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2
Q

What is the ability to do work?

A

Energy

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3
Q

What is energy due to position?

A

Potential Energy

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4
Q

What is the energy of motion?

A

Kinetic Energy

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5
Q

What is energy due to an objects elevated position?

A

Gravitational Potential Energy

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6
Q

What is work= change in kinetic energy?

A

Work Energy Therom

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7
Q

What is energy cannot be created or destroyed. It can be transformed or transferred from one form to another but the total amount of energy never changes?

A

Law of Conservation of Energy

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8
Q

What is a device that can multiply forces or change their direction?

A

Machine

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9
Q

What contains an effort arm, resistance arm, and fulcrum?

A

Lever

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10
Q

What is the point on a lever that does not move?

A

Fulcrum

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11
Q

What is the portion of the lever where you apply force?

A

Effort Arm

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12
Q

What is the portion of the lever that is applying a force to move an object?

A

Resistance Arm

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13
Q

What has an effort force at one end, resistance force at the other, and fulcrum in the middle?

Ex. Hammer, see-saw

A

First Class Lever

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14
Q

What has an effort force on one end, resistance force in the middle, and fulcrum at the other end?

Ex. Wheelbarrow

A

Second Class Lever

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15
Q

What has an effort force in the middle, resistance force on one end, and fulcrum on the other end?

Ex. Mom, broom

A

Third Class Lever

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16
Q

What is a special kind of lever that has a wheel with a groove in it?

A

Pulley

17
Q

What describes how much work a machine does? (Cannot exceed 100%)

A

Efficiency

18
Q

What is the unit for work?

A

Joule

19
Q

What comes from nuclear energy in the earth?

A

Geothermal

Science (31 decks)

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